/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.lvyh.lightframe.tracer.starter.config;

import com.lvyh.lightframe.tracer.core.enums.ReporterType;
import com.lvyh.lightframe.tracer.core.listener.JaegerRemoteReporterListener;
import com.lvyh.lightframe.tracer.core.listener.SpanReportListener;
import com.lvyh.lightframe.tracer.core.listener.SpanReportListenerHolder;
import com.lvyh.lightframe.tracer.core.listener.ZipkinRemoteReporterListener;
import com.lvyh.lightframe.tracer.core.reporter.JaegerRemoteReporter;
import com.lvyh.lightframe.tracer.core.reporter.ZipkinRemoteReporter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;

@Configuration
public class TracerAutoConfiguration implements EnvironmentAware {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    private Environment env;

    @Bean
    public SpanReportListener spanReportListener() {

        SpanReportListener spanReportListener = null;
        String reportTypeKey = env.getProperty("tracer.report.type");
        String baseUrl = env.getProperty("tracer.report.baseUrl");
        ReporterType reporterType = ReporterType.convert(reportTypeKey);

        if (reporterType == ReporterType.ZIPKIN) {
            spanReportListener = new ZipkinRemoteReporterListener(new ZipkinRemoteReporter(baseUrl));
        } else if (reporterType == ReporterType.JAEGER) {
            spanReportListener = new JaegerRemoteReporterListener(new JaegerRemoteReporter(baseUrl));
        } else {
            throw new UnsupportedOperationException("trace report type is invalid.");
        }

        SpanReportListenerHolder.addSpanReportListener(spanReportListener);

        logger.info("[TracerAutoConfiguration] Init reportor listener success.");
        return spanReportListener;
    }

    @Override
    public void setEnvironment(Environment environment) {
        this.env = environment;
    }

}